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arm64 fixes:

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- Avoid a literal load with the MMU off on the CPU resume path
   (potential inconsistency between cache and RAM)
 
 - Build error with CONFIG_ACPI=n fixed
 
 - Compiler warning in the arch/arm64/mm/dump.c code fixed
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Avoid a literal load with the MMU off on the CPU resume path
   (potential inconsistency between cache and RAM)

 - Build error with CONFIG_ACPI=n fixed

 - Compiler warning in the arch/arm64/mm/dump.c code fixed

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Fix shift warning in arch/arm64/mm/dump.c
  arm64: kernel: avoid literal load of virtual address with MMU off
  arm64: Fix NUMA build error when !CONFIG_ACPI
This commit is contained in:
Linus Torvalds 2016-08-18 11:17:13 -07:00
commit f28535c100
3 changed files with 14 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
arch/arm64/kernel/sleep.S
View File

@ -101,12 +101,20 @@ ENTRY(cpu_resume)
bl el2_setup // if in EL2 drop to EL1 cleanly
/* enable the MMU early - so we can access sleep_save_stash by va */
adr_l lr, __enable_mmu /* __cpu_setup will return here */
ldr x27, =_cpu_resume /* __enable_mmu will branch here */
adr_l x27, _resume_switched /* __enable_mmu will branch here */
adrp x25, idmap_pg_dir
adrp x26, swapper_pg_dir
b __cpu_setup
ENDPROC(cpu_resume)
.pushsection ".idmap.text", "ax"
_resume_switched:
ldr x8, =_cpu_resume
br x8
ENDPROC(_resume_switched)
.ltorg
.popsection
ENTRY(_cpu_resume)
mrs x1, mpidr_el1
adrp x8, mpidr_hash

6
arch/arm64/mm/dump.c
View File

@ -242,7 +242,7 @@ static void note_page(struct pg_state *st, unsigned long addr, unsigned level,
static void walk_pte(struct pg_state *st, pmd_t *pmd, unsigned long start)
{
pte_t *pte = pte_offset_kernel(pmd, 0);
pte_t *pte = pte_offset_kernel(pmd, 0UL);
unsigned long addr;
unsigned i;
@ -254,7 +254,7 @@ static void walk_pte(struct pg_state *st, pmd_t *pmd, unsigned long start)
static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start)
{
pmd_t *pmd = pmd_offset(pud, 0);
pmd_t *pmd = pmd_offset(pud, 0UL);
unsigned long addr;
unsigned i;
@ -271,7 +271,7 @@ static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start)
static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start)
{
pud_t *pud = pud_offset(pgd, 0);
pud_t *pud = pud_offset(pgd, 0UL);
unsigned long addr;
unsigned i;

2
arch/arm64/mm/numa.c
View File

@ -23,6 +23,8 @@
#include <linux/module.h>
#include <linux/of.h>
#include <asm/acpi.h>
struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
EXPORT_SYMBOL(node_data);
nodemask_t numa_nodes_parsed __initdata;